Topping the A70 Pro is simple and very effective. It integrates a balanced XLR set and a stereo RCA set, but with the possibility of connecting the A70Pro to the Ext90 you can get a total of 4 balanced XLR inputs and 2 RCA inputs. Three connections are available on the output side; balanced 4.4 mm jack output, 6.35 jack output and 4 pin XLR output. There is also an RCA output and an XLR output for the preamplifier function.<\/p>\n
The Topping A70 Pro can also be used as a preamplifier. It also has high performance as a preamplifier with an output impedance of 50 Ohms on RCA and 100 Ohms on XLR. This allows the Topping A70 Pro to be connected to many amplifiers.<\/p>\n
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Maximum THD+N: <0.00005%
\nMaximum SNR: 147dB
\nMaximum dynamic range: 147dB
\nFrequency response: 20Hz \u2013 40kHz
\nMaximum output levels: 56Vpp (low gain), 54Vpp (high gain)
\nActual noise level (A-wt): <0.6uVrms (low gain), <1.8uVrms (high gain)
\nLowest crosstalk: -133dB
\nGain: 6dB (low gain), 19.8dB (high gain)
\nOutput levels:
\n17,000mW x2 @16\u03a9
\n12,600mW x2 @32\u03a9
\n6,000mW x2 @64\u03a9
\n1.370mW x2 @300\u03a9
\n670mW x2 @600\u03a9<\/p>","protected":false},"excerpt":{"rendered":"
The Topping A70 Pro introduces a reoptimized new circuit architecture, featuring an ultra-low-level input stage with reduced noise and increased input impedance for improved compatibility with a variety of devices. Redesigned gain architecture reduces noise and distortion even at high gain levels. To combat noise, it includes a GND\/LIFT switch that eliminates unwanted noise with a simple change. The addition of Aurora UI with a full color screen and touch buttons provides a new user experience, offering customizable display options.
\nThe Topping A70 Pro uses relay volume control for precise adjustment and long-term reliability. Acting as both a headphone amplifier and a preamp, it offers high performance and low output impedance for versatile use with different audio setups.<\/p>\n